telecommunications

Sometimes, telecommunication. (used with a singular verb) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.

2.

Sometimes, telecommunication. (used with a singular verb) the science and technology of such communication.

(těl'ĭ-kə-my'nĭ-kā'shən) The science and technology of sending and receiving information such as sound, visual images, or computer data over long distances through the use of electrical, radio, or light signals, using electronic devices to encode the information as signals and to decode the signals as information.